Apparatus for forming cement blocks and the like



March 17, 1925.

I S. A. STRIKER APPARATUS FOR FORMING CEMENT BLOCKS AND THE LIKE Filed Dec. 26, 1923 0 q 2 3 3 1 w a 2, 4 E

a 4 H w/ u u U fl/ Z JM Patented Mar. 17, i925.

sinner era-Inna, or nownnns oaovn, ILLiNoIs.

APPARATUS FOR EOBlVZING OElVIIENl BLOCKS AND THE LIKE.

Application filed December 26, 1923. Serial Ito. 682,635.

Z '0 all whom it may concern Be it known that I, SIDNEY-5i. Srnrnna, citizen of the United States, residing at the city of Downers tirove, in the county of Du Page and State of Illinois, have invented certain new and useful improvements in Apparatus for Forming Cement Blocks and the like, of which the following is a specification.

My invention relates to apparatus for forming building and other blocks from cement or the like plastic material.

One object of my said invention is to provide a mold in which a plurality of such blocks may be easily and quickly formed from slush composition of cement, similar to that used in filling the forms now em ployed in building construction.

Another object is to provide a simple and inexpensive mold in which the parts are in terchangeable, and which can be easily and quickly assembled.

Another object is to provide such an apparatus in which the blocks shall be formed of two separated blocks, joined together by suitable metal ties or rods, such blocks, when laid in a wall will form a continuous dead air space between the inner and outer walls.

Another object is to provide such an apparatus in which loose sand is employed to form the core between the two sections of the block.

With the foregoing and other objects in view, which will more particularly appear in the following description, I have shown in the accompanying drawings, and described herein one form of my said apparatus which will illustrate my said invention, and in the accompanying drawings, in which like figures of reference refer to similar parts,

Figure 1 is a top-plan view of the lower section of my apparatus with a portion of the cross partitions removed.

Figure 2 is an elevation of one of the side pieces shown at a in Figure 1.

Figure 3 13 an elevation of one oi the cross partitions shown at 6 in Figure 1.

Figure 4 is a top plan view of the middle section of my apparatus indicated as 2.

Figure 5 is a side elevation of the middle section 2.

Figure 6 is an end view of my apparatus showing a mold with portions broken away to show a cement block molded therein with the sand core shown between the two separated parts. Figure 7 is an elevation showing one of the completed cement blocks after being removed from the apparatus, and having the sand core removed therefrom. V

In the accompanying drawings llhave illustrated the preferred style'of my said apparatus and in it l have shown the lower section 1, with the middle section 2 for holding thesand core. and the top section 3, which. in construction is identical with the lower section 1. paratus inexpensively, I have constructed it usually' from plain'hoards of the'required thickness. In order to provide facilities for easily and quickly assembling the said device, Ihave provided the side pieces 4: with slots 5 as shown, which are located at the required intervals to form blocks of the sizes required, and are usually one-half the width of the said side pieces in depth. The cross partitions 6, as shown, are usually of the same width as the sides l, and have slots approximate the ends of a depth of one half the width of said cross partitions 6, at 7, and T as shown.

The middle section 2 is preferably formed in the rectangular shape shown, with open top and bottom,the corners being securely fastened together by any usual means. At suitable distances from the middle I have provided cross bonds as 10, 10, which cross said section 2, and extend through openings 11 provided in the sides of said section. Openings 12 are provided near the ends of the parts 10, through which may be passed the wedge shaped pins 13, for the purpose of preventing the longitudinal sides of the section 2 from spreading from the .e'li'ect or pressure within said section in the course of its use in said apparatus.

The upper section 3 is of identical construction as section 1, with sides having slots as in side 4-, and with cross partitions 6 having slots as Z' shown in Figure 3.

To assemblemy said apparatus for molding cement blocks, the two sides 4 of the lower section are placed on edge as shown in Figure 1, and a suitable number of cross partitions 6 are placed in position, as shown, with the slots 7, 7 of the cross partitions in engagement with the slots 5, 5 of the side 4. When all of the cross partitions have been inserted, the section forms a mold in which In order tomake my ap a plurality of cement blocks may be molded 1, :upon the lower section 1, and this section V sembled.

isfilled level full of slightly dampened sand.

as used in foundries, shown at 14 Figure 6. The upper section 1S now assembled in the same manner as was the lowest section, and

this is placed upon the middle section 2, and then poured full of cement, in a manner similar to the section 1. The mold is now filled, and the number of cement blocks have been cast shown. be filled in turn, and when the cement has hardened suliiciently topermit removing the mold,itis removed by lifting out the cross partitions 6 from the upper section, and re moving the sidesthereof. The middle sec- ;tion is lifted off the sand, within it, which mostly runs out upon the floor convenient for repeated use, what is left in the mold is swept out, and the lower section 1 is disassembled by removing the cross partitions 6, andthen the side pieces 4i, and the cement blocks stand as shown inFigure 7, com plete, the upper and lower portions being entirely separated by a. dead air space as shown, and only connected by the numer ous wire ortie rods-l5 shown.

. By the construction shown, it will be apparent that the apparatus is inexpensive in construction, and iseasily and quickly assembled, and dis-assembled. By using sand for the core in the middle section, it is easily and quickly shovelled into said form from the flooror other suitable receptacle, and when removed from the form, is in place ready to be used in the next forms to be as- By constructing the sides and ends of the lower and upper sections with the slots 5 and 7 therein, they are quickly placed together, and when so placed are locked against separation by any pressure, applied withln the same 111 use.

In filling the'forms, it will be seen that a suitable re- Other similar molds may ceptacle may be employed, and as many forms poured at one time, as the receptacle holds of cement. As the slush cement runs to every portion of the form, it will fill it full, without the necessity of tamping, as is customary in most cementblocks now constructed. ment, when it hardens, it is much harder than the moist mixture usually employed, and is incapable of dis-integration from moisture, or weather conditions as with many now manufactured from the merely moist mixture. By molding the two sections separately, with the sand core between them, a complete dead air space is formed, and no moisture or cold can seep through the wall from the outside to the inside, as has occurred frequently with the hollow center blocks now in use.

Having thus described. my said invention, What I claim and desire to secure by Let ters Patent, is the following 1 1. In a device of the class described, the combination of one section composed of sides having slots therein, partitionshaving slots therein, a second section forming a hollow rectangular space, and a third section composed of sides havingslots therein, and partitions having slots therein, substantially as shown and described.

2. In a device of the class described, the combination of a lower section formed of two side pieces having slots half way of their width, partitions having slots engaging said first named slots, a rectangular frame disposed above said lower section, and a third section similar to the first section, disposed above said second section, substantially as shown and described.

3. In a. device of the classdesscribed, the combimition of a knock-down lower section having a plurality of spaces therein for receiving slush. cement, a rectangular frame of same size disposed upon said first section for holding loose sand to form av core, and a third section disposed above said second section for receiving slush cement, with ties or binding rods connecting the lower and upper sections of cement to hold them together when removed from the mold, substantially as shown and described.

In testimony whereof, I have hereunto aflixed my signature. I

' SIDNEY A. STRIKER By employing the slush ce-- loo 

